Plow.



B. GRUBB. PLOW.

'APPLICATION FILED 1AN.13,1915.

' 1,155.91?. Puatenlted Oct. 5,1915.

Inventor Attorneys' narran 'spaans rarnna orare.

ROBERT GRUBB. OF POWERS LAKE, NORTH DAKOTA.

PLOW.

Specification of Letters Yatent.

.Patented 0ct. 5, 1915.

Application filed January 13, 1915. Serial No. 2,0114.

v attaching means which is simple, durable and compact, can be readily manipulated, and which is in a position where it will not interfere with the ordinary operation of the plow. A

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and 1n,

the details of construction hereinafter described and claimed, it being understoody that changes in the precise embodiment of the invention herein disclose, can be made In said drawings Figure l is a perspective view of the plow inverted to show the present improvements. Fig. 2 is a perspective view of the share and.point landside inverted. Fig. 3 is a perspective view of a portion of the frog, adjacent parts being broken away. Fig. 1iis an enlarged section on line A-B Fig. 1. Fig. 5 is a perspective view of the coupling lever forming a part of the present improvements.

lReferring to the figures by characters of reference 1 designates a frog the inwardly extending wing Q of which is provided, at

its forward or front edge with a notch orv recess 3. The outer side of the frog, which is substantially triangular, is provided, near the point, with a longitudinally extending key 4 which is dovetailed in cross sectional contour and has a transverse shoulder 5 from which the key is 'gradually reduced in thicknesstoward its front end, as shown at 6. A moldboard 7 is adapted 'to be fastened in the usual or any preferred manner to the wing 2 of the frog and pivotally connected to the moldboard as at S is a bell crank lever 9 provided with spaced notches 10 and 11 in one arm thereof. The notch 10 is designed to engage aheaded stud'12 eXtending from the moldboard 7 so as thus to be held tightly against the under surface of the moldboard.`

The plow share 13 is adapted to lap the front end of the frog-and lto abut against the forward edge of the moldboard, this share being provided at one side with a `point landside 14, provided with a dovetailed groove 15 for the reception of the key 4 when the said point landside is shifted longitudinally onto the key. This longitudinal movement of the point, landside into position is limited by the shoulder 5 on the key. .A headed stud A16 extends downwardly from that endl of the shane remote from the point landside and is adapted to bereceived within the notch 11 so that the said share will thus be tied to the moldboard. Another headed stud 17 extends from the share at a point adjacentthe point landside and is adapted to be received within the notch orl recess and to be engaged by a hook 1S or the like provided at the forward end of a rod 19. y The rear portion of this 4 rod adjustably engages one arm of lever 9' 21 may bebolted or otherwise secured upon the outer side of the frog l so as to abut against the back end of the point landside. It will be apparent that when the studs 16 and 17 are engaged by the lever 9.and the rod 19 respectively, the share will be held securely to the moldboard andcannot be accidentally displaced. connecting rod 19 from lever 9, said lever can be swung about its pivot 8 so as to release the stud 1G andv rod 19 can be disengaged from the stud 17 so that the share can thus be slipped forwardly to disengage its point landside from the key 4.

What is claimed is 1. In a plow, the combination with a frog having a recess extending into the front portion of the inwardly extending wing thereof, and a longitudinally extending key upon the point of the outer side of the frog, of a moldboard, a share. a point landside carried thereby and insertible into engagement with the key, a projection upon the share and movable into the recess in the frog. a lever fulcrumed lupon the moldboard,

However, by diS- for simultaneously drawing the projection von the share rearwardly into the recess in the frog and shifting the other arm of the lever laterally to press against the lever engagng mea-ns on the share, whereby a Simultaneous backward and lateral pull is exerted upon the share. relative to the moldboard and frog. y l

2. ln a plow, the combination with a frog having a recess extending into the front edge portion of the inwardly extending wingrthereof, of a moldboard, a share, a point landside carried by the share and adapted to engage the outer side of the frog, 'a projection upon the` share, a lever fulcrmed upon the Inoldboard, means upon the share for engagement by one arm of the lever, and means engaging the projection and the other arm of the lever and adjustable relative to the lever for simultaneously drawing the projection rearwardly into the recess in the frog and swinging the other arm of the lever against the lever engaging means on the share to thrust said means laterally, thereby to bind the point landside against the frog.

` In testimony that l claim the foregoing as myl own, I have hereto afxed my signature in the `presence of two witnesses.

* ROBERT GRUBB.

Witnesses i .v O. G. NYQUIsT,

AXEL E. BOUs'rRoM.

opies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents.

' Washington, 1D. C. 

